Rated for high-temperature stability (hence the "hot" designation in many search queries). Why the "Hot" Status?
A: Re-check the datasheet. It could be oscillating (parasitic oscillation) due to poor layout, or you may have a counterfeit with higher RθJC. Also, verify your heatsink’s thermal resistance matches the datasheet’s requirement. nec b58944 datasheet hot
Analysis and Application of NEC B58944 Datasheet nec b58944 datasheet hot
This chip is noted as an "easily damaged part" on ECU circuit boards; replacement is a common repair for engine computer failures. nec b58944 datasheet hot
If you are troubleshooting a circuit where this component is overheating, please disconnect power and discharge capacitors before handling. Ensure proper ESD safety measures when installing a new part. Use thermal paste for proper heat transfer to the heatsink.